🆕rmtolamatchtypevalue

This page details upcoming data that will be provided for the new RM To LA Match Type Value Code List in the OS NGD from the end of September 2025 to give you early insight. This code list is currently not available through the live access services. The information on this page is as accurate as possible, but is subject to change before launch.

This code list is used in association with the Match Type attribute which is present within the Royal Mail Address Feature Type. The Royal Mail Address provides Royal Mail delivery point addresses, a point geometry and information describing the relationship they have with Local Authority addresses. The code list describes the relationship between the Royal Mail Unique Delivery Point Reference Number (UDPRN) and the Unique Property Reference Number (UPRN) of an address.

Label	Definition
Direct	The Royal Mail Unique Delivery Point Reference Number (UDPRN) has been matched directly to a Unique Property Reference Number (UPRN), either in a one-to-one or many-to-one relationship (many UDPRNs to one UPRN).
Neighbour	The Royal Mail Unique Delivery Point Reference Number (UDPRN) cannot be matched directly to a Unique Property Reference Number (UPRN), but there is sufficient information in the Royal Mail data description to identify a UPRN which can reasonably be expected to be a neighbour.
Parent	The Royal Mail Unique Delivery Point Reference Number (UDPRN) cannot be matched directly to a Unique Property Reference Number (UPRN), but there is information in the Royal Mail data description which indicates the record is a subdivision of an existing Parent UPRN.
Street	The Royal Mail Unique Delivery Point Reference Number (UDPRN) does not meet the criteria for Direct, Parent or Neighbour matches, but there are other Unique Property Reference Numbers (UPRNs) which exist on the same street.
Unmatched	The Royal Mail Unique Delivery Point Reference Number (UDPRN) cannot be matched to a Unique Property Reference Number (UPRN).